Natural History Study for Charcot Marie Tooth Disease

Inclusion Criteria: Patients will be made aware of the study by HNF and others (referenced above) and invited to participate. Once patients have reviewed and signed electronically the informed consent document, it is attached to their file. All affected individuals with CMT/IN are eligible to participate in GRIN with proper informed consent. Children, adolescents and adults with either a confirmed diagnosis or suspected to have CMT/IN are eligible with parent and/or guardian consent. Individuals that have been clinically diagnosed through family history and/or standard clinical testing (e.g. neuro exam, EMG, NCS) and/or genetically tested or suspected to have CMT/IN (note: many mutations have not been identified yet) are eligible. Exclusion Criteria: People that do not have Charcot-Marie-Tooth or other Inherited Neuropathies